Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc6 win in 3 half-moves
3 Ka7 draw
4 Kb8 draw
5 Kc5 draw
6 Ke4 draw
7 Ke5 draw
8 Ke6 draw
9 Rc6 draw
10 Rd7 draw
11 Rd8 draw
12 Re6 draw
13 Rf6 draw
14 Rg6 draw
15 Rh6 draw
16 Kc4 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Rb6 loss in 2 half-moves